Regulations & Permits
Use this portal to filter and search for all of our regulatory information.
We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.
BOD benchsheet for SM 5210B
This a quality-control tool for environmental laboratories is used with the 5-day Biochemical Oxygen Demand (BOD) test, Standard Method 5210-B.
https://ecology.wa.gov/bod-benchsheet-sm-5210b
pH benchsheet
is a quality-control tool for environmental laboratories.
https://ecology.wa.gov/ph-benchsheet
Total suspended solids benchsheet
is a quality-control tool for environmental laboratories.
https://ecology.wa.gov/total-suspended-solids-benchsheet
SEPA subject index
References to SEPA topics in rule and statute.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-subject-index
Proficiency testing requirements
Six proficiency testing sample providers are approved by our laboratory accreditation program.
https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/proficiency-testing-providers
1205 results
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